CRISPR-cas9: a powerful tool towards precision medicine in cancer treatment

Hui Xing1,2, Ling-Hua Meng3,4

  • 1Division of Anti-tumor Pharmacology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China.

Insights

CRISPR-cas9 screening advances precision medicine by identifying cancer drug targets and resistance mechanisms. This powerful gene editing tool aids in overcoming tumor heterogeneity and improving patient outcomes.

Area of Science:

  • Oncology
  • Genetics
  • Biotechnology

Background:

  • Cancer exhibits significant molecular heterogeneity, contributing to treatment resistance and recurrence.
  • Understanding tumorigenesis and drug resistance is crucial for developing effective precision medicine strategies.
  • CRISPR-cas9 gene editing offers powerful capabilities for high-throughput screening in cancer research.

Purpose of the Study:

  • To review the progress of CRISPR-cas9-based unbiased screening in precision medicine.
  • To highlight the role of CRISPR-cas9 in identifying novel drug targets and biomarkers.
  • To elucidate mechanisms underlying cancer drug resistance using CRISPR-cas9 screening.

Main Methods:

  • CRISPR-cas9-based high-throughput screening.
  • Unbiased screening approaches for gene identification.
  • Analysis of tumorigenesis and drug resistance mechanisms.

Main Results:

  • CRISPR-cas9 screening facilitates the discovery of tumor-driving and synergistic lethal genes.
  • Identification of potential new drug targets and predictive biomarkers for cancer therapy.
  • Elucidation of key molecular mechanisms contributing to acquired drug resistance.

Conclusions:

  • CRISPR-cas9 screening is a transformative tool in precision oncology.
  • It holds significant promise for overcoming drug resistance and improving therapeutic strategies.
  • Further research is needed to address current challenges and optimize applications.

Related Concept Videos

CRISPR01:59

CRISPR

Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
57.3K
CRISPR/Cas9 Genome Editing01:28

CRISPR/Cas9 Genome Editing

The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
1.5K
CRISPR and crRNAs02:53

CRISPR and crRNAs

Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
18.6K
Homologous Recombination02:31

Homologous Recombination

The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
62.2K